Regression analysis of synuclein expression.

aSlope calculated from linear regression of immunoblot optical density of the indicated Syns measured at 2-12 months, where 2-month-old mean of respective genotypes is set to 100% and all other values are expressed relative to 2-month-old level (also measured as percents, see Fig. 4). Slope units are percent change per month of age. bStatistical test for non-zero slopes for each regression analysis. Statistically significant p-values (<0.05) are bolded. cHuman A53T α-Syn is not present in WT mice.